You can write a retool workflow, or js script on an app to push files to loop through all your files and persist them wherever you wish to back them up eg. S3 etc. We are also working on adding support for public URLs which I expect to be released in 2-3 weeks, which might assist you with that though you can already send this state anyway (even without URLs). We don't have an FTP resource on Retool so you might have to handle writing to FTP outside of Retool (not an expert on FTP though). Let me know if that makes sense!